| 摘要 |
PROBLEM TO BE SOLVED: To suppress an increase in packets held and accumulated in a ring bus.SOLUTION: A data processing device comprises: a plurality of communication means connected via a ring-shaped bus; and a plurality of processing means that corresponds to a plurality of communication means respectively and that processes data fed from the plurality of communication means. A first communication means of the plurality of communication means adds, when processing means corresponding to the first communication means is in a state of being unable to accept data, the held information, indicating that processing means has not been accepted, to data having been not accepted by the processing means, to make the ring-shaped bus go around. A second communication means of the plurality of communication means suppresses data input to the ring-shaped bus on the basis of the data to which the held information is added. |
